Direct access magnetic disc storage device



March 24, 1970 DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE W. A. GODDARD ET Original Filed Dec. 24, 1954 55 Sheets-Sheet 1 /0/ /0Z) l HEAD E MAGNETIC DRIVE DISCS SYSTEM l I FIG. 2 //0 I087 i READ a CONTROL WRITE cmcun's CIRCUITS I ,1 J k I i SHIFT //.7- REGISTER INVENTORS, 1 P 1v 1 I k I CARD CARD WILLIAM AG 00 RD KEYBOARD o A READER PUNCH j j Jon/v J Lyn/arr I mu m 1064 ADDRESS KEYBOARD REGISTER REGISTER 4 AGENT March 24, 1970 w GODDARD EI'AL 3,503,060

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March 24, 1970 A. 3,503,060

DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 55 Sheets-Shet 3 March 24, 1970 w, GODDARD ETAL 3,503,060

DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 :35 Sheets-Sheet 4.

.March 24, 1970 W GQDDARD ETAL 3,503,000

DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 55 Sheets-Sheet 5 AOORELSS LOCATION DIG/T OF FUNCTION SELECTS 1S7 COLUMN SECTOR SELECT/ON ONE OF FOUR RE CORDS END 8 3190 COLUMNS DISC SELECT/ON ONE OF 32 DISC-9 I H 3!?!) COLUMN.( LEAST SIDE OF DISC ONE SIDE OR OTHER SIDE SIGNIFICANT ONLY} D4 0/? 5m COLUMNS TRACK SELECT/0N mac/r "0" T0 99" INCL.

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DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE 55 Sheets-Sheet '7 Original Filed Dec. 24, 1954 March 24, 1970 w. A. GODDARD ETAL 3,503,060

DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 35 Sheets-Sheet 8 AA v m d m 11 v D Z O U FIG. [6a

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DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE ad Dec. 24, 1954 35 Sheets-Sheet 12 March 24, 1970 w. A. GODDARD ETAL 3,503,060

DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 55 Sheets-Sheet 15 M04 6-7flf 1 6-65 1 f 1 Q Q i 6% o o O m 1 2 a s 12 I: 74

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March 24, 1970 DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE 55 Sheets- Sheet 18 Origmal Filed Dec.

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DIRECT ACCESS MAGNETIC DISC STORAGE DEVICE Original Filed Dec. 24, 1954 55 Sheets-Sheet 2O HEOM a? Y Z 7 ii 6 L H634 F/6.38 F/6.37 747 FIG. 44

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